Improvement in planing-mach ines



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JAMES J. RUSS, OF WORCESTER, MASSACHUSETTS.

IMPROVEMENT IN PLANING-MACHINES.

Specification forming part of Letters Patent No. 57,191 dated August 14,1866.

To all whom it may concern.-

Be it known that I, J AMES J. RUSS, of Worcester, in the county ofWorcester and State of Massachusetts, have invented a new and ImprovedPressure-Foot for Planing-Machines, 85e.; and I do hereby declare thatthe following is a full, clear, and exact description thereof, whichwill enable others skilled in the art to make and use the same,reference being had to the accompanying drawings, forming part of thisspecification.

The present invention consists in so hanging a pressure shoe or foot forwood planing and molding' machines to and in a xed support or resttherefor that it can be adjusted in position to accommodate itself tothe cutters of the machine, whether large or small, and alsoadjusted'and set to conform to the bevel or inclination, whether more orless, of the surface of the stuft' or wooden strip which is being passedor run through the molding or planing machine, whereby the wood orstuff, while being acted upon by the cutters, can be firmly held, andthus prevented from springing,7 so called.

In accompanying plate of drawings my improved pressure shoe or foot isillustrated, Figure l being a side elevation of the same; Fig. 2, atransverse vertical section through the pressure-foot taken in the planeof the line m x, but with the head in and to which the pressure-foot ishung in elevation; and Fig. 3, an elevation ofthe front end of thepressurefoot.

Similar letters of reference indicate like parts.

A in the drawings represents the head or block in which thepressure-footB is hung, as will be presently explained, this block, byits arm O, being set over and secured to any cross bar or rail, D, oftheframe-work of a molding or planing machine in proper or suitableposition therefor, a set or thumb screw, E, being used as a means forfastening.

The pressure-foot B is made of suitable width and length, and along thecenter line of its upper side, in the direction of its length, is araised flange, F, terminating at and along its upper edge in acircular-shaped bead or strip, G, in transverse section, which bead,

along its entire or for a portion only of its length, has a series ofribs, a, with aspace, b,

between each rib formed around it, extending from one side to the otherof the flange F, as plainly shown in the drawings.

By the bead-fiange F, hereinbefore referred to, ofthe upper side of thepressure-foot the pressure-foot is hung in the groove H of the underside of the head-block A, which groove extends in the direction of itslength, and is of a corresponding shape, in transverse section, to thesaid bead-flange F, consequentlyv holding the pressure-foot so thatitcannot fall out of or become disengaged from the headblock, while, toenable the pressure-foot to be swung either to the right or left in thesaid block, the groove H,Vat the edges I I, is suitably cut awaytherefor. (See Figs. 2 and Sin the drawings.)

J J are two forked arms, one upon each side of thehead-block A, and atpoints directly opposite to each other, in and between the forks of eachof which arms a block, K, is pivoted or hung so as to swing, througheach of which blocks a thumb or set screw, L, is passed, that,

` at their lower ends, by properly screwing them through the saidswinging-blocks, come to a bea-ring against the upper side of thepressure foot or shoe B.

From the above it is plainly obvious that by hanging the pressure footor shoe in and to the head-block A, secured to the cross bar or rail ofthe machine, so as to swing therein, in combination with the thumb orset screws L, arranged in such head so that they can be brought to bearupon the pressure'foot upon each side of the headblock, the saidpressurefoot can be easily adjusted and set transversely or across itswidth to any bevel or ineline which there may be in the surface of thewooden strip or stuff that is being planed or molded, so that if thehead-block to which the pressure-foot is hung is secured in the properpart of the machine therefor, the stuif, as it is acted upon by thecutters of the machine, can thus be held firmly and rigidly down withoutspringing,77 so called, the advantages of which are obvious.

To adjust the pressure-foot within the headblock A, in the direction ofits length, so that the position of the front end of the pressurefootcan be properly set with regard to the plane of revolution ofthe cuttersused, whether they be large or small, the pressure-foot is simply movedforward or backward through the head-block, according as the case may beor it may require, until in the desired position, when, engaging thestop M, inserted in the upper side of the head-block, with the ribs ofthe head-ange F of the pressure -foot, by simpl y depressingor pushingit down and there seeming it by a setscrew, N, the pressure-foot is thusfirmly secured and held in such position, and cannot move laterallyWithin the headblock,- the ribs of the bead-ange F and the stop Menabling the pressure-foot to be adiljusted at any points of its length,as is obvious.

From the above description it isplainly obvious that both adjustments ofwhich the pressure-foot is susceptible are independent of each other,and that Whatever its adjustment may be in one particular ordirection-as, for instance, transversely or longitudinallythe otheradjustment is still free to be made Without disturbing such prior. adjustment-an advantage of considerable importance.

In order that the pressure-foot B may be placed or adjusted with greatcloseness on the Wooden strip or stuff upon which the cutters of theplaning or molding machine are acting to the point of the action of thecutters upon the stuff, I deem it best to bevel the frontend of thepressure foot or shoe for a portion of its length, as plainly shown inFig. l of the drawings, whereby the desired result can be accomplished,as is obvious Without any further explanation.

It is apparent that many modications may be made in the detail,construction, and arrangement of the various parts composing my improvedpressure foot or shoe, and yet the shoe be susceptible of the adjustmenthereinabove explained, and therefore I do not intend to limit myself toonly the precise arrangement and construction described, the presentinvention consisting, as before stated, in so hanging the pressure footor shoe as to be susceptible of either one or both of the adjustmentshereinbefore specified.

What I claim as new, and desire to secure by Letters Patent, is-

A pressure-foot for planing-machines, arranged and constructed tooperate substantially as described. f

The above specification of my invention signed by me this 11th day. ofMay, 1866.

JAMES J. RUSS.

Witnesses:

M. M. LIVINGSTON, ALBERT W. BROWN.

